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Aspidograptus
Taxonomy
Aspidograptus is a genus. It is not extant. Its type is Clematograptus implicatus.
It was assigned to Dendrograptidae by Rickards et al. (1990); and to Dendroidea by Sepkoski (2002).
It was assigned to Dendrograptidae by Rickards et al. (1990); and to Dendroidea by Sepkoski (2002).
Species
Species lacking formal opinion data
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1875 | Clematograptus Hopkinson pp. 216 - 217 |
| 1990 | Aspidograptus Rickards et al. p. 214 |
| 2002 | Aspidograptus Sepkoski |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
G. †Aspidograptus
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†Aspidograptus implicatus Hopkinson 1875
†Aspidograptus smithtonensis Rickards et al. 1990
Invalid names: Clematograptus Hopkinson 1875 [replaced]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| R. B. Rickards et al. 1990 | Similar to Dendrograptus but branching partly 'lateral' with curved principal stipes, probably four in number, 'lateral' branches repeatedly bifurcate; anastomosis infrequent to common but never dominant; incomplete anastomosis in places; dissepiments absent; flabellate habit; stemmed holdfast. |